Published:2023/11/16  Last Updated:2023/11/16

JVNVU#99077347
Multiple vulnerabilities in First Corporation's DVRs

Overview

Digital Video Recorders (DVRs) provided by First Co., Ltd. contain multiple vulnerabilities.

Products Affected

  • CFR-904E, CFR-908E, CFR-916E
  • CFR-4EHD, CFR-8EHD, CFR-16EHD
  • CFR-4EHA, CFR-8EHA, CFR-16EHA
  • CFR-4EAAM, CFR-4EABC
  • CFR-4EAA, CFR-8EAA, CFR-16EAA
  • CFR-4EAB, CFR-8EAB, CFR-16EAB
  • CFR-1004EA, CFR-1008EA, CFR-1016EA
  • MD-404HD, MD-808HD
  • MD-404HA, MD-808HA
  • MD-404AA, MD-808AA
  • MD-404AB, MD-808AB

Description

DVRs provided by First Co., Ltd. contain multiple vulnerabilities listed below.

  • Use of hard-coded password (CWE-259) - CVE-2023-47213
    CVSS v3 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score: 8.1
  • Missing authentication for critical function (CWE-306) - CVE-2023-47674
    CVSS v3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score: 9.8

Impact

A remote attacker may rewrite or obtain the configuration information of the affected device.

Solution

Update the Firmware
The developer provides the firmware updates for the following products.

  • CFR-4EABC, CFR-4EAB, CFR-8EAB, CFR-16EAB, MD-404AB, MD-808AB: Late model
Apply the Workaround
For products for which no firmware updates are provided, apply the workaround indicated by the developer.

For more information, refer to the information provided by the developer.

References

  1. NICTER Blog (Text in Japanese)
    NICTER Observation Statistics - January to March 2022 / Rapid increase in the number of Mirai infected hosts in Japan

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Yoshiki Mori of National Institute of Information and Communications Technology Cybersecurity Research Institute reported these vulnerabilities to JPCERT/CC.
JPCERT/CC coordinated with the developer.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2023-47213
CVE-2023-47674
JVN iPedia